> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tinycloud.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Spaces

> Understand the TinyCloud container that owns a user's data

A TinyCloud space is the owned container for data. It is the thing you land in after sign-in, and it is the boundary that keeps one user's application data separate from another user's data.

## What To Use This Page For

* Decide which space name your app should use.
* See how the Web and Node SDKs name a space.
* Move on to provisioning when you need the space to exist on the node.

| SDK | Input | Result |
| - | - | - |
| Web | `spacePrefix` | The primary space name used by `TinyCloudWeb` |
| Node | `prefix` | The primary space name used by `TinyCloudNode` |

The resulting space URI has the form `tinycloud:pkh:eip155:<chainId>:<address>:<name>`.

After sign-in, `tc.spaceId` or `node.spaceId` gives you the active primary space URI.

## Read Next

* [Spaces provisioning](/guides/spaces/provisioning)
* [Authentication](/guides/authentication)
* [Node SDK reference](/reference/sdk/node)

<Note>
  Verified against `@tinycloud/web-sdk` and `@tinycloud/node-sdk` 3.0.0.
</Note>


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